• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    A deflection generator (60) of a television receiver is coupled to a deflection winding (LH) for generating scanning current during a deflection cycle. The generator includes a retrace capacitor (C13) coupled to the deflection winding (LH) for forming a resonant retrace circuit therewith to produce a retrace pulse voltage during a retrace interval of the deflection cycle. An inductor (L1) and another capacitor (C5) form a second resonant circuit that is coupled to the retrace resonant circuit. A switching arrangement (S1, S2) is coupled to a source (24) of energy and to the second resonant circuit. The switching arrangement (S1, S2) is responsive to a deflection rate switching signal to store during trace a controllable amount of energy from the source (24) in the second resonant circuit (C5, Ll); the amount of energy thus stored is controlled by controlling the conduction times of the switching arrangement. This stored energy is then transferred to the resonant retrace circuit during the retrace interval to replenish losses sustained during the deflection cycle.
    公开号:SU1286122A3
    申请号:SU823396176
    申请日:1982-02-15
    公开日:1987-01-23
    发明作者:Эдуард Хаферл Питер
    申请人:Рка Корпорейшн (Фирма)；
    IPC主号:
    专利说明:

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    The invention relates to television, specifically to an adjustable variance scheme intended for display devices with a television type raster.
    The purpose of the invention is to simplify the driver by eliminating the triggering transformer. FIG. Figure 1 shows a structural electrical circuit for an adjustable driver for a television receiver sweep signal; in fig. 2 timing charts of the device.
    The adjustable TV receiver sweep signal generator contains a voltage source 1, a control unit 2, a horizontal scan generator 3, a deflection unit 4, a CRT containing the first capacitor 5 and a horizontal deflection coil 6, the first switch 7, the second switch 8, the inductor 9, the second capacitor 10, a line transformer 11.
    Adjustable signal shaper scanner television receiver works as follows.
    In the free oscillation mode, the second switch 8 is shorted to ground. In this case, in a closed circuit: the second switch 8, the inductor 9, the second capacitor 10 and the control unit 2, free oscillations are made, the frequency of which can be selected about half the horizontal frequency of a CRT f for synchronous operation with a horizontal sweep generator 3. However, when the frequency of free oscillations is chosen too low during the operation of the circuit, in the mode of free oscillations, pulses of unreasonably high amplitude appear in the inductor 9.
    ; The character of the switching voltage V on the second switch 8 of the electric current passing through the coil 9 of inductance i | in the free oscillation mode, shown in FIG. 2ai: & The shape of the switching voltage on the first switch 7 (not shown) has a phase shift of 180 with respect to the waveform shown in FIG. 2a Most of the energy passing through both switches 7 and 8 has
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    22 2 the reactive nature and, therefore, the actual consumption of electrical energy is very small. The indicated electrical energy consumption corresponds to its losses on the first and second switches 7 and 8 and on the active components of the inductor 9 and the second capacitor 10.
    The horizontal scanning signal generator 3 thus generates an electrical sweep current in the deflection unit 4 and a reverse voltage pulse (Fig. 2) ().
    Starting from time t within the horizontal time interval (Fig. 2a and c) and until later time tg, corresponding to the beginning of the next horizontal time interval, the second switch 8 is in the open state, and the first switch 7 - in a closed state.
    An electric inductor lb flows through the first switch 7, the inductor 9, the second capacitor 10, and the block 4 of the sweep stroke deviation to ground. By the time t, the accumulation of electrical energy I L / 2 occurs in the inductor 9, where L is the value of the inductance of the coil; I, is the maximum value of the electric current that flows through the coil 9 of the inductance at time t, and is transmitted to the coil 6 of horizontal deflection. A reverse pulse is generated, which is supplied to block 2 and switches the switches 7 and 8. In FIG. 2c, this is illustrated as rapidly decreasing the amount of electric current i after time point t. After the electric current of the inductor 9 during the reverse sweep passes through zero, a small part of the transferred energy returns to the inductor 9, which is illustrated by the negative current i occurring before time t. At time t, one of the capacitor plates 10 is connected to earth. The amount of electrical energy transmitted during
    each horizontal deflection cycle is almost equal to the difference in the values of the electric energy that was stored by the inductor 9 at the time t and at the time t,.
    Between the times t and t, the electric current i passes through the second switch 8, the inductor 9 and the generator 3 of the horizontal scanning signal, which is currently in the closed state.
    During this time interval, the energy that is stored in the capacitor 10 is discharged back into the inductor 9. At time t, the control electrical circuit of unit 2 opens the switch and simultaneously closes switch 7. The energy stored in the inductor 9 begins to flow back to the voltage source I. The process continues until at time time ty the current of the coil 9 the inductance does not reach zero. Starting from the time tj and right up to the beginning of the next interval of the reverse sweep, electric energy is again accumulated in the inductor 9 for its subsequent transfer to the resonant electrical sweep reverse circuit (block A) and load electrical circuits.
    The waveforms on the right side of FIG. 2a and c correspond to synchronized operation at lower levels of the load electric circuits compared to the load level corresponding to the shape of the signals shown on the left side of FIG. 2. The purpose of control is to maintain the peak value of the amplitude of the pulse voltage of the reverse sweep stroke at a constant level. In the case of a lower load, in contrast to the situation considered, more energy returns to the inductance coil 9 at the end of the temporary return interval along the line (at time t,) and more energy returns to voltage source 1 at time t. it
    due to lower consumption of electric energy.
    The amount of electrical energy stored in the coil 9 inductance
    at time t (on the left side of Fig. 2) and at time t (on the right side of Fig. 2), has almost the same value regardless of the load level. The maximum value of the stored electrical energy depends only on the amplitude of the voltage of the voltage source 1, the maximum energy of which is transmitted to the control unit 2.
    With a maximum load or with a short-circuited load, the magnitude of the average voltage on the capacitor 10 is approximately equal to half the magnitude of the input voltage. As
     decreasing the load, the magnitude of the average voltage on the capacitor 10 increases.
    25
    F. formula of invention
    Adjustable television receiver sweep signal generator containing voltage source, control unit, signal generator
    horizontal scanning, the output of which is connected to the input of the deflected cathode-ray tube (CRT) unit, to the input of the control unit and to the line transformer, while the deflection unit contains
    35 connected the first capacitor and the horizontal deflection coil of a CRT, in particular, in order to simplify the driver by eliminating the triggering transfor40
    torus are introduced in series
    the first switch and the second switch, as well as a chain of inductively connected coils and a second capacitor, one 45; the output of which is connected to the output of the horizontal signal generator, the other output is connected to the connection point of the first and second switches, the second outputs 50 of each of which are connected, respectively, to the first and second outputs of the voltage source, and the output of the block control is connected to the control inputs of the first and second switches.
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    权利要求:
    Claims (1)
    [1]
    An adjustable driver of the scan signal of a television receiver containing a voltage source, a control unit, a horizontal signal generator, the output of which is connected to the input of the cathode ray tube rejection unit (CRT), to the input of the control unit and to the horizontal transformer, while the deviation unit contains in series. connected to the first capacitor and a CRT horizontal deflection coil, characterized in that, in order to simplify the shaper by eliminating the starting transformer, the first switch and the second switch are connected in series, as well as a circuit from the inductance coil and the second capacitor connected in series, one: output which is connected to the output _: · oscillator signal horizontal scanning, another output of which is connected to the connection point of the first and second switches, the second vy.vody azhdogo of which are respectively connected to first and second outputs of the voltage source and the control unit output is connected to the control inputs of the first and second re breakers.
    类似技术:
    公开号 | 公开日 | 专利标题
    SU1491351A3|1989-06-30|Scanning device
    KR850003997A|1985-06-29|Deflection circuit
    SU1286122A3|1987-01-23|Controllable scanning signal shaper of television set
    US3452244A|1969-06-24|Electron beam deflection and high voltage generation circuit
    US2479081A|1949-08-16|Deflection circuits
    US3210601A|1965-10-05|Scanning circuit using controlled rectifiers
    SU828991A3|1981-05-07|Device for shaping line scanning voltage
    US4733141A|1988-03-22|Horizontal output circuit for correcting pin cushion distortion of a raster
    US4041354A|1977-08-09|Pincushion correction circuit
    CA1147454A|1983-05-31|Synchronous switched vertical deflection drivenduring both trace and retrace intervals
    US3349279A|1967-10-24|Electronic circuit
    US3449623A|1969-06-10|Electron beam deflection circuit
    US4547711A|1985-10-15|Method and apparatus for producing sawtooth wave deflection current for television apparatus
    US3889156A|1975-06-10|Double tuned retrace driven horizontal deflection circuit
    US4223367A|1980-09-16|Circuit for driving saw-tooth current in a coil
    US4118656A|1978-10-03|North-south pincushion distortion correction circuit
    US4890043A|1989-12-26|Arrangement for generating a sawtooth current
    US4164689A|1979-08-14|Saw-tooth wave generator
    US3436591A|1969-04-01|Electron beam deflection and low voltage supply circuit
    US4169988A|1979-10-02|Raster distortion correction circuit
    US2554925A|1951-05-29|Saw-tooth wave generator
    US4161675A|1979-07-17|Line output stage
    US3423630A|1969-01-21|Retrace driven deflection circuit with scr switch
    US3906306A|1975-09-16|Electron beam deflection circuit including thyristors
    US3287596A|1966-11-22|Single tube vertical deflection circuit for a television receiver
    同族专利:
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    JPH0338791B2|1991-06-11|
    GB2094085A|1982-09-08|
    US4484113A|1984-11-20|
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    EP0058552B1|1986-12-17|
    AT24367T|1987-01-15|
    EP0058552A1|1982-08-25|
    DE3274781D1|1987-01-29|
    DK65382A|1982-08-17|
    JP2532268B2|1996-09-11|
    JPS63266973A|1988-11-04|
    ES8303815A1|1983-02-01|
    PT74416A|1982-03-01|
    DE3280436T2|1993-09-16|
    ES509454A0|1983-02-01|
    PL235099A1|1982-09-13|
    GB2094085B|1984-08-01|
    DK164622C|1992-12-14|
    PL135074B1|1985-09-30|
    DE3280436D1|1993-06-03|
    FI75961B|1988-04-29|
    FI75961C|1988-08-08|
    DK164622B|1992-07-20|
    FI820408L|1982-08-17|
    PT74416B|1983-09-14|
    DE3205381A1|1982-11-18|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US3198978A|1960-09-30|1965-08-03|Philco Corp|Low d.c. power horizontal deflection circuit|
    US3596165A|1969-07-24|1971-07-27|Tektronix Inc|Converter circuit having a controlled output|
    NL7403201A|1974-03-11|1975-09-15|Philips Nv|CIRCUIT FOR GENERATING A SAW TOOTH DEFLECTION CURRENT.|
    GB1503666A|1974-04-01|1978-03-15|Mullard Ltd|Television display circuit arrangements which include a switched mode power supply|
    US3936115A|1974-08-19|1976-02-03|Rca Corporation|Start-up circuit for a deflection system|
    US3967182A|1975-06-20|1976-06-29|Rca Corporation|Regulated switched mode multiple output power supply|
    JPS5239008A|1975-09-16|1977-03-26|Westinghouse Electric Corp|Method of starting catalist combustor equipped turbine|
    MX4352E|1975-12-29|1982-04-06|Engelhard Min & Chem|IMPROVEMENTS IN METHOD AND APPARATUS FOR BURNING CARBON FUEL|
    FR2351258B1|1976-05-13|1979-10-05|Snecma|
    JPS5634883B2|1976-12-20|1981-08-13|
    FI55278C|1977-08-18|1979-06-11|Salora Oy|KOPPLING VID ETT LINJESLUTSTEG I EN TELEVISIONSMOTTAGARE|
    JPS6235308B2|1978-03-27|1987-07-31|Sony Corp|
    NL7803661A|1978-04-06|1979-10-09|Philips Nv|TUNED SWITCHED POWER SUPPLY CIRCUIT.|
    DE2960230D1|1978-05-02|1981-04-23|Thomson Brandt|Stabilized-power supply device for a line deflection circuit in a television receiver|
    US4176304A|1978-05-09|1979-11-27|Rca Corporation|Regulating television horizontal deflection arrangement|
    NL7809226A|1978-09-11|1980-03-13|Philips Nv|SWITCHED VOLTAGE CONVERTER.|
    US4193018A|1978-09-20|1980-03-11|Rca Corporation|Deflection circuit|
    US4227125A|1978-09-26|1980-10-07|Rca Corporation|Regulated deflection system|
    DE2849619C2|1978-11-15|1989-04-13|Siemens Ag, 1000 Berlin Und 8000 Muenchen, De|
    US4232254A|1978-11-29|1980-11-04|Rca Corporation|Regulated deflection circuit|
    DE2901326C2|1979-01-15|1987-06-11|Sachs Systemtechnik Gmbh, 8720 Schweinfurt, De|
    US4240013A|1979-05-29|1980-12-16|Rca Corporation|Horizontal deflection and power supply circuit with a start-up arrangement|
    US4484113A|1981-02-16|1984-11-20|Rca Corporation|Regulated deflection circuit|US4484113A|1981-02-16|1984-11-20|Rca Corporation|Regulated deflection circuit|
    ES8403261A1|1982-01-29|1984-03-01|Rca Corp|Television receiver standby circuit|
    DE3210908C2|1982-03-25|1984-05-30|Grundig E.M.V. Elektro-Mechanische Versuchsanstalt Max Grundig & Co KG, 8510 Fürth|Synchronized switched-mode power supply with mains-separated horizontal output stage circuit in television receivers|
    JPH0744648B2|1982-12-08|1995-05-15|池上通信機株式会社|High voltage stabilization circuit|
    NL8301263A|1983-04-11|1984-11-01|Philips Nv|POWER SUPPLY CIRCUIT.|
    SE457310B|1983-07-01|1988-12-12|Rca Corp|CIRCUMSTANCES COMPENSATION OF TELEVISION RECEIVER LOAD|
    US4829216A|1988-05-16|1989-05-09|Rca Licensing Corporation|SCR regulator for a television apparatus|
    DE19529941A1|1995-08-16|1997-02-20|Philips Patentverwaltung|Voltage converter|
    EP1416575A1|2002-10-30|2004-05-06|STMicroelectronics S.A.|Balun transformer|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    GB8104750|1981-02-16|
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